[INFO] updating cached repository GovTechSG/chkr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GovTechSG/chkr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GovTechSG/chkr" "work/ex/beta-1.38-1/sources/1.37.0/gh/GovTechSG/chkr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/GovTechSG/chkr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GovTechSG/chkr" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GovTechSG/chkr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GovTechSG/chkr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 767e4218499563f16683fc0b38f3e6505ef80480
[INFO] sha for GitHub repo GovTechSG/chkr: 767e4218499563f16683fc0b38f3e6505ef80480
[INFO] validating manifest of GovTechSG/chkr on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of GovTechSG/chkr on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing GovTechSG/chkr
[INFO] finished frobbing GovTechSG/chkr
[INFO] frobbed toml for GovTechSG/chkr written to work/ex/beta-1.38-1/sources/1.37.0/gh/GovTechSG/chkr/Cargo.toml
[INFO] started frobbing GovTechSG/chkr
[INFO] finished frobbing GovTechSG/chkr
[INFO] frobbed toml for GovTechSG/chkr written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GovTechSG/chkr/Cargo.toml
[INFO] crate GovTechSG/chkr already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing GovTechSG/chkr against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GovTechSG/chkr:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b856e41407c8a3b1102b65f0b61cfaa0c7c142373d246acb77e425e807c7b089
[INFO] running `"docker" "start" "-a" "b856e41407c8a3b1102b65f0b61cfaa0c7c142373d246acb77e425e807c7b089"`
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling md5 v0.3.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling csv v0.14.7
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling chkr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.93s
[INFO] running `"docker" "inspect" "b856e41407c8a3b1102b65f0b61cfaa0c7c142373d246acb77e425e807c7b089"`
[INFO] running `"docker" "rm" "-f" "b856e41407c8a3b1102b65f0b61cfaa0c7c142373d246acb77e425e807c7b089"`
[INFO] [stdout] b856e41407c8a3b1102b65f0b61cfaa0c7c142373d246acb77e425e807c7b089
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GovTechSG/chkr:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 517fa357781d290462a4caa4fd3e6395ad70b184c533fab0ee34cf1a66459109
[INFO] running `"docker" "start" "-a" "517fa357781d290462a4caa4fd3e6395ad70b184c533fab0ee34cf1a66459109"`
[INFO] [stderr]    Compiling assert_matches v1.1.0
[INFO] [stderr]    Compiling chkr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `"docker" "inspect" "517fa357781d290462a4caa4fd3e6395ad70b184c533fab0ee34cf1a66459109"`
[INFO] running `"docker" "rm" "-f" "517fa357781d290462a4caa4fd3e6395ad70b184c533fab0ee34cf1a66459109"`
[INFO] [stdout] 517fa357781d290462a4caa4fd3e6395ad70b184c533fab0ee34cf1a66459109
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GovTechSG/chkr:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0026d7d79c06da294d7ddf7dfb8d785f6662b36f1436837e26969dcb52daa8b3
[INFO] running `"docker" "start" "-a" "0026d7d79c06da294d7ddf7dfb8d785f6662b36f1436837e26969dcb52daa8b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chkr-ed0b7403553d87bd
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test checksum::tests::checksum_is_verified_correctly ... ok
[INFO] [stdout] test checksum::tests::incorrect_checksum_is_verified_correctly ... ok
[INFO] [stdout] test checksum::tests::missing_file_is_reported ... ok
[INFO] [stdout] test tests::file_returns_one_for_mismatch ... ok
[INFO] [stdout] test tests::file_returns_zero_for_match ... ok
[INFO] [stdout] test checksum::tests::checksums_are_read_correctly ... ok
[INFO] [stdout] test tests::file_returns_two_for_errors ... ok
[INFO] [stdout] test checksum::tests::checksums_manifest_is_verified_correctly ... ok
[INFO] [stdout] test tests::manifest_returns_three_for_fixture ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0026d7d79c06da294d7ddf7dfb8d785f6662b36f1436837e26969dcb52daa8b3"`
[INFO] running `"docker" "rm" "-f" "0026d7d79c06da294d7ddf7dfb8d785f6662b36f1436837e26969dcb52daa8b3"`
[INFO] [stdout] 0026d7d79c06da294d7ddf7dfb8d785f6662b36f1436837e26969dcb52daa8b3